Obtaining an adsorbent based on gamma alumina by vacuum spray method

Nanopowders of aluminum oxide and systems based on it have found application in many areas of human life, such as ceramics with additions of nanopowders, sorbents and catalysts. The structure and properties of these powders determine their unusual individual properties: mechanical, physicochemical properties, manifested both individually and in interaction with other substances. The aim of this work is to obtain aluminum oxide (y-AhO3) by vacuum spray method. Samples were obtained on a vacuum spray dryer Nano Spray Dryer B-90 (Switzerland). The phase composition was investigated by X-ray phase analysis, the surface morphology of the powders was studied by scanning electron microscopy and transmission electron microscopy. The study of the adsorption properties of the samples was carried out by the method of static adsorption of the eosin indicator. The studies have shown that the y-AlO3 samples obtained by vacuum spray have a porous structure and a significant specific surface area and have a high adsorption capacity with respect to eosin.

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